1225465253 has 4 divisors (see below), whose sum is σ = 1225991520. Its totient is φ = 1224938988.

The previous prime is 1225465243. The next prime is 1225465279. The reversal of 1225465253 is 3525645221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1225465253 - 2²⁴ = 1208688037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225465243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259625 + ... + 264302.

It is an arithmetic number, because the mean of its divisors is an integer number (306497880).

Almost surely, 2^1225465253 is an apocalyptic number.

It is an amenable number.

1225465253 is a deficient number, since it is larger than the sum of its proper divisors (526267).

1225465253 is an equidigital number, since it uses as much as digits as its factorization.

1225465253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526266.

The product of its digits is 72000, while the sum is 35.

The square root of 1225465253 is about 35006.6458404686. The cubic root of 1225465253 is about 1070.1229232523.

The spelling of 1225465253 in words is "one billion, two hundred twenty-five million, four hundred sixty-five thousand, two hundred fifty-three".